Werner Hopf, who presented a longitudinal study claiming
that violent video games is the most important risk factor in violent criminality (see the abstract here), rejected this idea, claiming that it was a trick of video game industry. Not only did he call for a ban of "extremely violent computer games", but he also called for the suppression of USK (German rating systems) because according to him it's too close to the industry. He asked for its replacement by a more independent rating organization. USK was also criticized by researchers from the KFN, the Criminology Institute lead by Christian Pfeiffer, one of the most vocal German opponents against "killer games". Regine Pfeiffer, Christian's sister, even attacked Electronic Arts violently, calling it a "pig company". Finally, journalist Rainer Fromm reiterated his objections against saddistic and militaristic games (that included not only FPS, but also some WWII strategy games that, he thinks, are ambiguous on the role of German Army). But he also said that he considered video games per se as a great hobby, even telling that he plays them regularly as well as his children. He also reiterated his very positive opinion of eSports.
